BEIRUT, Lebanon — Dozens of Islamic State group fighters were cornered in a pocket of Syria’s Daraa on Tuesday after losing all other territory there to a Russian-backed regime assault, a monitor said.

Sweden, which holds the United Nations Security Council’s rotating presidency, and Kuwait requested an emergency, closed-door meeting at the UN Security Council on Tuesday to complain that Israel and Jordan will not accept hundreds of thousands of Syrian refugees displaced by Russian-backed bombings in southern Daraa, Syria.

NEW YORK — The UN Security Council will hold an emergency meeting Thursday to discuss the Syrian army’s Russia-backed offensive against rebel groups in southern Syria that has forced some 300,000 people to flee ot the Jordanian and Israeli borders, diplomats said.

Fighters supporting dictator Bashar al-Assad have displaced up to 50,000 and shut down at least three hospitals in a siege to retake a rebel-held region in southwest Syria that borders Jordan and the Israeli-occupied Golan Heights, the United Nations and a monitor group report this week.

Russia reportedly breached a ceasefire deal late Saturday night that it had brokered with the United States and Jordan last July by carrying out airstrikes on in rebel-held Daraa, Syria, against forces opposed to Syrian dictator Bashar al-Assad, leaving at least five civilians dead and destroying a hospital and emergency rescue center during the process.